Window covering



FIG. 1 is a front view of my window covering;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a front perspective view thereof; and,

FIG. 8 is a rear perspective view of the window covering of FIG. 1 shown partially retracted.

The broken lines showing a valance in FIGS. 1, 3, 4, 5, 7, and 8; rings in FIGS. 2 and 8; and tabs in FIGS. 1, 3, 4, and 7; and spacer cords shown in broken line in FIGS. 2, 6, and 8 all depict portions of the window covering that form no part of the claimed design. 

CLAIM The ornamental design for a window covering, as shown and described. 